Johnstone Supply is a national HVAC parts and equipment distributor with a branch serving Atlanta, Georgia. The company operates as a wholesale supply house for licensed HVAC contractors — not a consumer or retail-facing service provider. Contractors use Johnstone Supply to source parts, equipment, refrigerants, tools, and supplies for HVAC installation and repair jobs.

The Atlanta branch stocks heating and cooling parts and systems, with ordering and account management accessible through the Johnstone Supply website for registered contractor accounts. The company also operates Johnstone University, a training program offering technical education and certifications for HVAC professionals.

Johnstone Supply serves the contractor trade rather than end consumers. Homeowners looking for HVAC repair or installation service should contact a licensed HVAC contractor — Johnstone Supply is the supply chain that those contractors use to source parts and equipment. The Atlanta branch's 4.0 rating across 37 reviews reflects the experience of trade professionals navigating a commercial supply counter environment.